diff options
author | Luke Shumaker <lukeshu@sbcglobal.net> | 2016-06-07 03:42:28 -0400 |
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committer | Luke Shumaker <lukeshu@sbcglobal.net> | 2016-06-07 03:42:28 -0400 |
commit | ab543cb05387d60a23f9d7672a9338cf03bddf55 (patch) | |
tree | 2eac9cecf19b4a07e4805d41a492554c21ce8e3c /src/libshared/spawn-ask-password-agent.c | |
parent | acd190019d99fe25abf4515ca1834eb277161833 (diff) |
./move.sh
Diffstat (limited to 'src/libshared/spawn-ask-password-agent.c')
-rw-r--r-- | src/libshared/spawn-ask-password-agent.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/src/libshared/spawn-ask-password-agent.c b/src/libshared/spawn-ask-password-agent.c new file mode 100644 index 0000000000..a46b7525f0 --- /dev/null +++ b/src/libshared/spawn-ask-password-agent.c @@ -0,0 +1,62 @@ +/*** + This file is part of systemd. + + Copyright 2011 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +***/ + +#include <signal.h> +#include <stdlib.h> +#include <unistd.h> + +#include "log.h" +#include "process-util.h" +#include "spawn-ask-password-agent.h" +#include "util.h" + +static pid_t agent_pid = 0; + +int ask_password_agent_open(void) { + int r; + + if (agent_pid > 0) + return 0; + + /* We check STDIN here, not STDOUT, since this is about input, + * not output */ + if (!isatty(STDIN_FILENO)) + return 0; + + r = fork_agent(&agent_pid, + NULL, 0, + SYSTEMD_TTY_ASK_PASSWORD_AGENT_BINARY_PATH, + SYSTEMD_TTY_ASK_PASSWORD_AGENT_BINARY_PATH, "--watch", NULL); + if (r < 0) + return log_error_errno(r, "Failed to fork TTY ask password agent: %m"); + + return 1; +} + +void ask_password_agent_close(void) { + + if (agent_pid <= 0) + return; + + /* Inform agent that we are done */ + (void) kill(agent_pid, SIGTERM); + (void) kill(agent_pid, SIGCONT); + (void) wait_for_terminate(agent_pid, NULL); + agent_pid = 0; +} |